Centrifugal pump



May1z,192s. 1,537,700

V. ROSENHAGEN CENTRIFUGAL PUMP Filed April 19, 1924 2 Sheets-Sheet 1 j@/S ./m

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V. ROSENHAGEN CENTRIFUGAL PUMP Filed April 19'. 1924 -2 sheets-Sheet 2 Aattozmg Y/ on Rost/mam Patented Wiley l2, 192.5.`

vieron aosENHaeniv, or sntiavua; Karreucar.Yy

rear or cnn'rarrueari PUMP, .Y

Appncaaon faedaprii v1a, i924. Vserial No. 707,730.

To achetait/12mg con-ccm Be it known that I, VicronlosENHAeEN, a citizenot the United` States ot America, and a resident ot Bellevue, in thecounty oit Campbell andiState of Kentucky, have ink vented newandusetullmprovements in a Centrifugal Pump, of `which the following is aspecification. i

My invention relates to centrifugal tluid punips, especially thoseadapted for operation upon fluids such asoil and water that may be usedfor lubricating machine tools and the like.

An object ofliny invention is to provide a device of the class describedthatis adapted to provide a water flow oftluidat a. ininimum pressure. l

Another object of my invention is to provide a device votthe classdescribed tor the purpose stated, especially adapted 'foruse withmachine tools.

These and other objects are attained by the means described herein anddisclosed in the accompanying drawings, in which:

Fig 1 is a sectional viewthrough a pump embodying my invention.

Fig. 2 lisY a sectional view on line 2 2 of Fig. 1 looking in thedirection ot the single headed arrow.

Fig.v 3 is a sectional view on line 3-3 ot Fig. 1. l Fig.` 4l is asectional view on line "4 of Fig. 1. l

Fig. 5` is a sectional view on line 5-5 of Fig. 1.v y l Fig. 6 is asectional view on line 2 2 ot Fig. 1, looking in the direction of thedouble headed arrows.

My device comprises a casing 10 consisting of an upper housing 11 andcomplementary lower housing 12. The lower or major portion of thecasingis adapted to be de posited within a receptacle 13 to which thelubricant employed with a machine tool or the like may ilow aud fromwhich receptacle `the iluid may be passed tothe cutting tools associatedwith machine tools. The bottoni housing 2 is provided with suitabledepending legs or lugs 14 for supportingthe device within the receptacle13 and also serve to space the aperture l'within the lower face of thehousing 12 from the bottom of `the receptacle 13 so that the fluiduponwhich the pump operates may find its way` into the casing from thereceptacle. The upper housinghas apertures 150 foi-ined in it. Theapertures 15 andlOestablish communication between the receptacle'13 andthe rotor chan'iber 16 termed withinA the casing 10.

A rotor'17 disposed within the ,rotor chaui- 60 bei 16 is carried by ashaft 18 that extends upwardly beyond the casing r10 and receptacle 13and may carry at its upper end any suitable means such as a bevel 'gear19 which bevel gear may be actuatedby a inachine 65 tool or the like inany suitable manner and by anysuitablemeans. By reference to theplanvi'ew rof the bottoin'housing 12, disclosedE inA Fig. G, it will beobserved that 7 there is provided a` central downwardly eX- 70 n tendingrecess that constitutes part of the rotor chamber and that said recessis defined on opposite sides by a pair oi upwardly extending walls orribs 21 and 22 that set oft' portions oit therecess 20 Yfrom the` ways23 75 and 2a constituting parts of the rotor'cham- -ber and lyingoutwardly ot the ribs 21 and 22.` Intermediate the adjacent ends of theiibs 21 and 22 the recess-20 communicates with the ways 23 and124 asindicated at v25 80 and 26. A duct 27 leads `from the way 24,substantially tangential thereto. It will be observed that theinner'edges of the ways 23 and2ldelined bythe outer peripheral faces oftheribs 21 and 22 are substantiallyy 85 concentric with the axis of theshaft 18. rlhe outer wall 28 of the rotor `chamber defines theouter-limits of the .ways 23l and 24 and is of a spiral structure, thewall. 28 being clos.-

est to the axis of slifaft18 at the unctionot 90 the way 23`and tlieduct27 and recedingr from said axis as 'the wall circles about the rib `22until said wall finally merges with th'eyouter wall of' the duct 27. Theybase housing 12 iis piovidedlwith a peripheral 95 flange 29 thatengages thc under peripheral tace of thcfupper housing 11 wherebytoprovide aunitary casing 10. The basehousing 12 is provided withanupwardly extending.

ledge 30 at* the inner edgeot the Jflange 29, 100

that'is re'ceivedin a con'iplernentaryrecess 31'iii the housing 11whereby td provide ya simple and effective aligning and sealing ineansbetween the saidliousings;

Th'e'rotor may be providedwth a plu- 105 i'ality of apertures 32adjacent its axis. IThe lower face 33 of the rotor is provided with aplurality of centrally disposed flanges or blades 34 deposited toy thefront of the openings at 32 so that as the rotor is revolved, 110

the fluid that enters the housing by way of the port is moved outwardlybeyond the primary paddles 34 to a plurality of peripheral paddles 35depending from the lower face of the rotor. 'Ihe inner or primarypaddles 34 operate within the recess 2O and the secondary paddles 35operate within the ways 23 and 24. Fluid may find its -way through theapertures 32 and 15G-to the upper face of the rotor where the fluid isoperated upon'by central primary paddles or blades 36 that move thefluid outwardly for opera-tion thereupon by secondary peripheral paddlesor blades 37*that extend upwardly from the upper face 38 of the rotor.The blades 3h are contained within a recess 39 formed centrally of thehousing 10 and about the axis of the rotor. The recess 3f) is spacedfrom peripheral ways disposed outwardly or beyond the recess 39 and areset off from the central recess 39 by ribs carried by the upper housing,which ribs are ,disposed above the ribs21 and 22 and are substantiallyidentical with the ribs which.

they overhang,' except that ribs carried by y the base housing` 12 arespaced further apart atthe place 26 than are the ribs 61 and 62 spacedfrom one another above the passage 26. The ribs on the base housing 12'are spaced at considerable distance at the place 26 so that a largeflow of fluid may enter the way whereby to utilize the m'omentumimparted to the fluid discharged into the way 24 for providing a flow oflarge volume through the duct 27 at a comparatively low and serves as aclosure for the upper-'end of the casing 10. Thev shaft 18 is supportedby suitable ball-bearing structures 42. l

By referencevto Fig. 5 it will be observedy that the lower face 43 ofthe cap 41 is provided with a spiral groove or way 44. This rspiralgroove bears such a relationship to the normal direction of movement 0fthe shaft 18 that same serves to throw outwardly from the shaft 18 anydust that mightyfind its way between the cap and the casing. In theoperation of my device the shaft 18, shown in Fig. 4, will move in aclock-wise direction. vFluid contained withl in the r-receptacle 13 willenter the rotor chamber lby way of the apertures in the housings. Theprimary blades upon the upper and lower faces of the rotorserve t0 movethe fluid out-ward and are augmented in that effort by the peripheralblades 35 and 37 By reference to Figs. 2 and 6 it will be evident thatthe flow of fluid in the way 24 and in the way above said way 24 will beat considerable pressure. As this flow of fluid passes by the opening orway 26the said flow serves to draw with it a large volume of fluid thathas been fed to the way 26 by the lower blades 34k whereby the speedimparted to the fluid as it passes through the way 24 serves` t0 impartmomentum to the large mass of -fluid that moves through the way 23. Ittherefore allows that a large flow of fluid at a compaia tively lowpressure, moves through the duct 27 to the pipe 40. The blades disposedupon the upper face of the rotor operate in substantially the samemanner as do the blades on the lower face operate, and cooperate withthe lower blades in moving the mass of fluid.

` A valve 50 is ordinarily associated with the pipe 40 and controls theflow of fluid through pipe 40. When valve 50 is closed, water thatenters the rotor chamber by way of the port or aperture 15 in they basehousing, may escape through the apertures or ports 150, therebyprecluding the fluid under pressure rising within the upper housing 11.rIhis therefore precludes the fluid from reaching the ball bearings 42supporting the rotor. e

What I claim' is:

1. In a device of the class described the combination of a casing havinga rotor chamber therein, the casing comprising ribsextending into saidchamber from 0pposite sides thereof, a rotor within the `chamber andlying between the ribs extending from the opposite sides of the chamber,the ribs on opposite sides ofthe rotor dividing the chamber sections onopposite sides of the rotor into a central recess and a waylyingoutwardly of said ribs, the ribs 4lying on the same sides of therotor being spaced at their ends whereby to es tablish communicationbetween the central recesses and the ways disposed on a common side ofthe rotor, thc Irotor having apertures in it for establishingcommunication bel tween the central recesses disposed on op posite sidesof the roto1.',and blades extending from opposite sides of the rotor andoperating in the central recesses and in th(` ways. ,i

2. In a device of the class described the combination of a casing havinga rotor chamber therein, the casing comprising ribs extending into saidchamber from opposite sides thereof, a rotor within the chamber andlying between the ribs extending from the opposite sides of the chamber,the ribs on opposite sides of the rotorpdividing the chamber sections onopposite'sides of the rotor into acentral recess and `a way lying`outwardly osaid ribs, the ribs lying en the saine sides of the rotorbeing spaced vvat their ends whereby to establish communication betweenvthe central recesses and the ways disposed on a common side of therotor, the rotor having apertures within it for establishingcommunication between the central recesses disposed on opposite sides ofthe roter, blades extending -from opposite sides of the rotor andyoperating in Vthe central on opposite sides of the rotor dividing thechamber sections on opposite sides of the rotor into a central recessand a way lying outwardly oit said ribs, the ribs lying on the sainesides of the rotor being spaced at their ends whereby to establishcommunicatioii between the central recesses and the ways kdisposed on acommon side of the rotor, the rotor having apertures within it torestablishing communication between the central recesses disposed onoppositesides ot the rotor, the blades extending from opposite sides ofthe rotor and operating in the central recesses and in the ways, thecasing having a port whereby fluid may enter one of said centralrecesses and having a discharge duct whereby Huid may leave the ways.

4t. In a device of the class described the combination of a casinghaving a rotor cli-amber therein, the casing comprising ribs extendinginto said chamber from opposite sides thereof, a `rotor within thechamber and lying' between the ribs extending from the opposite sides otthe chamber, the ribs on opposite sides ot' the rotor dividing thechamber sections on opposite sides ot' the rotor into a central recessand a way lying outwardly ot said ribs, the ribs lying on the sainesides ofthe rotor being spaced at their ends whereby to establishcommunication between the central recesses and the ways disposed on acommon side of the rotor, the i'otor having` apertures within it forestablishing communication between the central recesses disposed onopposite sides of the rotor, and blades extending from opposite sides ofthe rotor and operating in the central recesses and in the ways, the

casing having a port whereby fluidl may enter one of said centralrecesses and having a discharge duct whereby fluid may leave the ways,the ribs disposed on that side ot the casing having said port providedthereiii having their ends spaced at a distance greater Vthan theydistance between the ends of the ribs disposed Aon the opposite side ot'the rotor. i

5. ln a device of the class described the i combination `of a casinghaving a `rotor dclian'rlljer therein, the `casing comprising ribsextending into said chamber from opposite sides thereof, 'a rotor withinthe chamber and ylying between the ribs extending from lthe oppositesides ot the chamber,'the ribs on opposite sides ot the rotor dividingthe chamber sections on opposite sides of the rotor into a vcentralrecess and a way `lying `ioutwairdly of said ribs, the ribs lying on thevsaline sides of therotor being spaced at their lends 'whereby toestablish communication between the central recesses and the waysdisposed on a common side ot the rotor, the casing having ports thereinfor eiliecting communication through the casing with the opposedsections of the chamber, and blades extending from opposite sides of therotor and operating in the central recesses and in the ways.

6. ln a device of the class described the combination of' a casing`having a rotor chamber therein, the casing comprising ribs extendinginto said chamber from opposite sides thereof, a rotor within thechamber and lying' between the ribs extending from the opposite sides ofthe chamber, the ribs on opposite sides of the rotor dividing thechamber sections on opposite sides of the rotor into a central recessand a way lying outwardly of said ribs, the ribs lying on the same sidesof the rotor being spaced at their ends whereby to establishcoinmunication between the central recesses and the ways disposed on acommon side of the rotor, the casing having ports therein foretii'ecting communication through the casing with the opposed sectionsof the chamber,

blades extending from opposite sides of the rotor and operating in thecentral recesses and in the ways, and means `for revolving the rotor.

7. In a device of the class described the combination otl a casinghaving a rotor chamber therein, the casing comlirising ribs i extendinginto said chamber from opposite sides thereoLt, a rotor within thechamber and lying between the ribs extending trom the opposite sides ofthe chamber, the ribs on opposite sides of the rotor dividing thechamber sections `on opposite sides of thc rotor into a central recessand a way lying outwardly of vsaid ribs, the ribs lying on the sainesides ofthe rotor being spaced attlieir ends whereby toestablishcommunication between the central recesses and they waysdisposed on a common side of the rotor, the blades extending fromopposite sides of the rotor'and operating in the central recesses and inthe ways, the casing having ports whereby Huid inay enter said centralrecesses and having a discharge duct whereby fluid inay leave the ways.

8. In a device of the class described the combination of a casingkhaving a rotor chamber therein, the casing comprising ribs extendinginto said chamber from opposite sides thereof, a rotor within thechamber and lying between the ribs -extending from the opposite sides ofthe chamber, the ribs on opposite sides of the rotor dividing thechamber sections on, opposite sides of the rotor into a centralrecessand a Way lying outwardly of said ribs, the ribs lying on the sainesides of the rotor being spaced at their ends whereby to establishcommunication between the central recesses and the ways disposed on aconnnen side of the rotor, and blades extending from opposite sides ofthe rotor and operating iny the central recesses and in the ways, thecasing lhaving ports whereby Huid may enter said central recesses andhaving'a discharge duct whereby fluid may leave the ways, the ribsdisposed on thatside of the casing having said port provided thereinhavingtheir ends spaced at a distance greater than the distancebetweentheends o the ribs disposed on the opposite side of the rotor.v v

In testimony whereof, I have hereunto subscribed iny naine this 9th dayof April, 1924.

VICTOR ROSENHAGEN.

